Page 1
G & L-Series Multifunction
Temperature Switches
G-Series
L
FEATURES
• Single setpoint, fixed deadband
• Single setpoint, adjustable deadband
• Dual setpoint
Thermowells
Thermowells must be used on any
application where the stem of the temperature switch may be exposed to pressure, corrosive fluids or high velocity.
Additionally, the use of a thermowell per-
its instrument interchange or calibration
Ashcroft Inc. supplies highly reliable
®
Ashcroft
switches and controls for industrial and process applications. We begin
with rock-solid designs, matching the
most appropriate technology with the
safety and reliability requirements of the
applications. The materials of construction
are specified to Ashcroft’s exacting standards, and product is built to last in the
toughest applications. Our modern,
responsive manufacturing facility is supported by an extensive network of stocking distributors and factory sales offices
located in virtually every part of the world.
Special application assistance is
always just a telephone call away.
The Ashcroft G & L-Series temper-
ature switch line is designed to satis-
fy most switch requirements. Materials
of construction have been selected for
long life. A wide variety of precision switch
elements are available to meet every
application requirement, including hermet-
m
check without disturbing or closing down
the process.
Ashcroft temperature switches have
bulb diameters to match
thermowells. The bulbs have a sensitive
portion length of 2
1
with 2
⁄2˝ “U” dimensioned thermowells or
3
⁄8˝ nominal bore
1
⁄4˝ which can be used
longer. For maximum accuracy, a thermowell “U” dimension should be selected
to permit complete immersion of the sensitive portion plus 1˝ when measuring the
temperature of liquids; an extra 3˝ should
be allowed when measuring the temperature of gases.
Thermowell bushings should be used with
remote mount temperature switches. We
recommend the standard 3˝ bulb and code
69 Series bushings for use with any thermo-well “U” dimension. A split rubber grommet allows easy installation and “S” dimension adjustment.
ically sealed contacts for added reliability
and safety. The thermal systems we use
have been proven in more than 20 years
of service in the world’s plants and mills.
Special designs are available for more
stringent requirements. Simplicity and
ease of use are stressed to improve reliability of the installation.
Applications include: pumps, compres-
sors, washers, filters, degreasers, evap-
ies
er
-S
orators, recovery systems, food processing, ground support equipment, reverse
osmosis systems, heat exchangers,
hydraulic systems, lubrication systems,
marine equipment, textile machinery,
heating and air conditioning equipment.
BULLETIN SWGL-1-T
All specifications are subject to chang e without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2014 11/14
Ashcroft Inc., 250 Ea st Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.co m • www.ashcroft.com
Page 2
G & L-Series Multifunction
Temperature Switches
Temperature Switches
G- and L-Series temperature switches feature a
AMA Class II vapor pressure thermal system.
S
This system provides quick, accurate response
to process temperature changes with negligible
mbient temperature effects. This is inherent in
a
the design due to the precise relation-ship
between temperature and pressure according to
the vapor pressure laws. A wide selection of
sensing bulb and armored capillary lengths are
available. The vapor pressure system design features small bulb sizes, making installation easy
and cost-effective.
All models feature ±1 percent of span
setpoint repeatability with very high over-
temperature ratings.
These standard designs perform well in appli-
ations where shock and vibration could be a
c
problem and should be used with Ashcroft thermowells for bulb protection and ease of installa-
ion and maintenance.
t
TEMPERATURE RANGE SELECTION
Approximate Deadband
°F
–40 to 60 –40 to16 400 18-90 4.0-10 9.0-18 1.5-3 2-5 4-10 9.0-18 1.5-3 2-5
0 to 100 –20 to 40 400 30-90 5.0-15 10-30 1.5-5 3-7 5-15 10-30 1.5-4.5 3-7
75 to 205 20 to 95 400 34-120 6.0-18 10-34 3-5.5 3-8 6-18 10-34 3-5.5 3-8
150 to 260 65 to125 400 25-100 3-13 9.0-25 1.5-4 3-7 3-13 9.0-25 1.5-4 3-7
235 to 375 110 to 190 500 35-130 6-19 10-35 2-5.5 3-8 6-17 10-35 2-5.5 3-8
350 to 525
500 to 750
NOTES:
1. Switches may generally be set between 15% and 100% of
nominal range on increasing or decreasing temperature.
Consult factory for applications where setpoints must be
lower.
2. All deadbands are given in °F.
Nominal Range
(5)
175 to 275 700 40-165 5-27 15-40 3-7 3.5-11 5-27 15-40 3-7 3.5-11
(5)(6)
260 to 400 900 50-200 20-36 36-60 5-10 6-21 20-36 36-60 5-10 6-21
(1)
°C °F J, H G J, H K, F P GG JJ, HH KK, FF PP
Max.
LTA-GTA
Switch Element
Temp.
3. Deadbands for LTA and GTA are adjustable between the values shown.
4. Deadbands for LTS, GTS, LTD and GTDmodels are fixed
within the range of values shown. Manufacturing and parts
variances result in variation from one unit to another.
5. Not available with 2
(3)
LTS-GTS
3
⁄
4˝stem
(4)
LTD-GTD
6. Available with remote mount thermal system only.
Switches calibrated at 70°F ambient reference.
(2)
(4)
BULLETIN SWGL-1-T
All specifications are subject to chang e without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2014 11/14
Ashcroft Inc., 250 Ea st Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.co m • www.ashcroft.com
Page 3
G & L-Series Multifunction
Temperature Switches
G- and L-SERIES TEMPERATURE SWITCHES ORDERING INFORMATION
1 2 3 4 5 6 7 8
G T A N 4 H 0 5 A 7
1
– FUNCTION
GTS/LTS - Temperature Control, Single Setpoint, Fixed
G
G
2 – ENCLOSURE
N4 - NEMA 4, 4X
Deadband
TA/LTA - Temperature Control, Single Setpoint,
Adjustable Deadband
TD/LTD - Temperature Control, Two Independently
A
djustable Setpoints, Fixed Deadband
L-Series: Epoxy Coated, Die Cast
Aluminum, IP66
G-Series: 316 SS IP65
030
3
– SWITCH ELEMENTS FOR GTA/LTA
CONTROLS
Description/Maximum Electrical Ratings
Code UL/CSA listed
10A,125/250 Vac
H General purpose 1/2A, 125 Vdc
1/4A, 250 Vdc
Hermetically sealed
J switch, general 11A, 125/250 Vac
purpose 5A, 30 Vdc
SWITCH ELEMENTS FOR FOR GTD/LTD
& GTS/LTS CONTROLS
Code
Single Dual
(4)
K
KK Narrow deadband 15A, 125/250 Vac
(4)
FF Sealed environment 15A, 125/250 Vac
F
15A, 125/250/480 Vac
(5)
G
GG General purpose 1/2A, 125 Vdc
1/4A, 250 Vdc
Hermetically sealed
(3)
P
PP switch, narrow 5A, 125/250 Vac
deadband
Hermetically sealed
J JJ switch, general 11A,125/250 Vac
purpose 5A, 30 Vdc
W WW Ammonia service 15A, 125/250 Vac
C CC Heavy duty ac 22A, 125/250 Vac
(8)
Heavy duty dc 10A, 125 Vac or dc
S
Y YY High temp. 300°F 15A, 125/250 Vac
(7)
U
UU
increasing
(7)
E
EE
decreasing
Hermetically sealed
L LL switch, gold contacts 5A, 125/250 Vac
M MM Low level, gold 1A, 125/250 Vac
contacts
4 – LINE LENGTH
Order Code Line Length ft Style
00 Not Applicable Rigid
05 5 Capillary
10 10 with
15 15 Armor
20 20 (Std.)
25 25
Switch elements UL/CSA listed
proof
Manual reset trip on
(7)
Manual reset trip on
(7)
(4)
DIRECT MOUNT
REMOTE MOUNT
1
⁄
8 HP, 125 Vac or dc
15A, 125/250 Vac
15A, 125/250 Vac
X N H
150°-260°F
5 – THERMAL SYSTEM SELECTION
L
INE MATERIAL
Direct Mount
Order Code Description
No entry required for
direct mount
Remote Mount
A7 SS Armor (Std.)
6 – BULB LENGTH SELECTION
Minimum
Order Code “S” Dimension Thermowell
“U” Dimension
027 23/4˝ —
040 4˝ 2
060 6˝ 4
090 9˝ 7
120 12˝ 101⁄
030 3˝ 2
DIRECT MOUNT
REMOTE MOUNT
(5)
7 – G- & L-SERIES TEMP. SWITCH OPTIONS
Code Description
XCH Chained Cover
XFP Fungus Proof
XFS Factory Adjusted Setpoints
XJL 3⁄
XK3 Terminal Blocks
XNH Tagging Stainless Steel
XPK Pilot Lights, L-Series
XPM
(6)
X2C
DPDT with Single Setpoint Adjustment
XBX 69 Series Bushing for Thermowell Systems,
1
4˝ to
⁄
2˝ Reducing Bushing
3
⁄
4˝ Sealed Conduit Connection with 16˝
Lead Wires
1
⁄2 Male NPT
8 – STANDARD TEMPERATURE RANGE
See page 2
NOTES:
1. Estimated dc rating, 2.5A, 28 Vdc (not UL listed)
2. Estimated dc rating, 0.4A, 120 Vdc (not UL listed)
3. Not UL listed at 480 Vac
4. Additional line lengths available, call factory.
5. Additional bulb lengths available, call factory.
6. Available with LTS and GTS models only.
7. Available on L-Series only.
8. Not available with dual setpoints.
1
⁄
2˝
1
⁄
2˝
1
⁄
2˝
2˝
1
⁄
2˝
BULLETIN SWGL-1-T
All specifications are subject to chang e without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2014 11/14
Ashcroft Inc., 250 Ea st Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.co m • www.ashcroft.com
Page 4
2.64
(67)
4.78
(121)
0.25
(6)
2.26
(57)
2.50
(64)
5.68
(144)
1.60
(41)
2.10
(53)
0.38
(10)
1.31
(33)
3.38
(86)
Ø 0.37
(9)
4.17
(106)
1.86
(47)
“S”
2.31
ACTIVE BULB
LENGTH
(59)
7/8 HEX
1/2 NPT FEMALE
3/4 NPT FEMALE
CONDUIT ADAPTER
2.64
(67)
4.78
(121)
0.25
(6)
2.26
(57)
2.50
(64)
2.31
ACTIVE BLUE
LENGTH
(59)
2.50
(64)
“L”
Ø 0.37
(9)
3.00
(76)
2.10
(53)
1.60
(41)
5.68
(144)
4.17
(106)
0.38
(10)
1.86
(47)
3/4 NPT FEMALE
C
ONDUIT ADAPTER
Dimensions – G-Series
(
105)
2
.25
(57)
2
.50
(
64)
0.25
(6)
3
.47
(88)
2
.06
(52)
1.21
(
31)
0.38
(10)
3.94
(
100)
1.31
(
33)
“
S”
Ø 0.37
(9)
2
.31
A
CTIVE BULB
LENGTH
(
59)
3
.26
(
83)
6.09
(
155)
3
/4 NPT
7/8 HEX
1/2 NPT MALE
4
.12
2.31
A
CTIVE BULB
LENGTH
(59)
2
.06
(
52)
0
.38
(10)
3
.94
(
100)
3
.26
(83)
“L”
3.00
(76)
2.50
(
64)
Ø 0.37
(
9)
1.21
(31)
6
.09
(
155)
3
/4 NPT
4
.12
(
105)
0
.25
(6)
2.25
(57)
2.50
(64)
G & L-Series Multifunction
Temperature Switches
Temperature Switch – Direct Mount
Dimensions – L-Series
Temperature Switch – Direct Mount
“S” DIMENSION
IN) (MM)
(
2.75 70
4 102
152
6
229
9
12 305
Temperature Switch – Remote Mount
Temperature Switch – Remote Mount
BULLETIN SWGL-1-T
All specifications are subject to chang e without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2014 11/14
Ashcroft Inc., 250 Ea st Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.co m • www.ashcroft.com
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